Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac thi doan snippets" » "tac thai doan snippets", "tac thi hoan snippets", "tac thi loan snippets", "ta thi doan snippets", "tai thi doan snippets", "cac thi doan snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("tac thi doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tac thi doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac thi doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac thi doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.